
3-9
Matec Applied Sciences
56 Hudson St., Northborough, MA 01532 Ph: (508) 393-0155 Fax: (508) 393-5476
www.matec.com
e-mail: colloid@matec.com
Figure 3.9 The second Configure System screen.
When each of these commands is selected, the display changes so that a number may be entered.
The parameters are described and set as follows:
Pressure Limit - Used to set the pressure values above or below which the pump will shut off.
Pressure is measured in units of PSI (pounds per square inch). When clicked once, the display
will change to “Low Limit”. Rotate the selector knob to the desired value (1000 is
recommended), then push the knob to enter the value. The display will then change to “High
Limit” (6000 is recommended). Rotate the selector knob to the desired value, then push the knob
to enter the value.
Prime Flow Rate - Sets the flow rate to be used during priming in ml/min. When this parameter
is selected, the display changes to “Rate ml/min:”. Rotate the selector knob to the desired value,
then push the knob to enter the value. A typical value is 8.0 ml/min.
Prime Time - Sets the amount of time the pump runs during priming (2 min. normally). Time is
measured in units of minutes. When this parameter is selected the display changes to “Prime
Time:”. Rotate the selector knob to the desired value, then push the knob to enter the value.
Pump Standby - Sets how long the pump will run before it automatically shuts off. Time is
measured in units of minutes, and a setting of “0” will cause the pump to run indefinitely. The
parameter is best used in conjunction with an autosampler. For example, it can be used to shut
down the pump after the instrument has concluded an overnight run. However, the Pump
Standby time can expire before all samples are run, so be careful when setting this parameter. For
most purposes, a value of 0 should be used and the pump can be turned off manually (or the pump
can be turned off using the autosampler sequence setup options parameters in the software).
When this parameter is selected, the display changes to “Standby:”. Rotate the selector knob to
the desired value, then push the knob to enter the value.
Lamp Standby - Is used to determine how long the lamp in the UV/VIS detector will stay on
before it is automatically shut off. The purpose of shutting off the lamp is to hopefully extend its
life. However, if the lamp is shut off before all your samples are run, you will not obtain any
data. A value of “0” will leave the lamp on indefinitely. The lamp standby value must be equal
to the pump standby value. The instrument will not allow you to set the two parameters to
different values. Once this parameter is selected, the display changes to “Standby:”. Rotate the
selector knob to the desired value, then push the knob to enter the value.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com